Baker&#39;s oven.



H. HUEG.

BAKERS OVEN.

APPLICATION FILED JUNE 11, 1907.

- 917,299.. Patented Apr. 6, 1909.

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WIT/VESSE @gf/iii? auf HERMAN HUEG, OF LONG ISLAND CITY, NEW YORK.

BAKERS OVEN.

Speccation of Letters Patent.

Patented April 6, 1909.

Application filed June 11, 1907. Serial No. 378,410.

To all whom Lt may concern:

Be it known that I, HERMAN Hons, residing at Long Island City, in thecounty of Queens and State of New York, have invented a new and ImprovedBakers Oven, of which the following is a specification.

My present invention relates generally to bakers ovens and it primarilyseeks to provide an improved construction of oven having suchcooperative arrangement of parts, whereby to prevent the steam withinthe baking chamber from exhausting into the bake shop, during theoperation of passing the material to be baked through the oven doors.

My invention, in its more complete make up, embodies an improvedconstruction of the entrant end of the baking chamber, which includesmeans for trapping the steam so it can not escape through the oven doorswithout touching the bake stuff, and means for directing the surplussteam outside of the bake shop.

My invention also comprehends an improved arrangement of the oven lightbox.

Vith other objects in view which will be hereinafter explained, myinvention consists in certain details of construction and peculiarcombination of parts, all of which will hereinafter be fully described,specifically pointed out in the appended claims and illustrated in theaccompanying drawings, in which Figure 1, is a longitudinal section ofmy improved construction of bakers oven, the direction of the productsof combustion from the furnace being indicated by the arrows. Fig. 2, isa front view of the oven. Fig. 3, is an enlarged, longitudinal sectionof the entrant end of the baking chamber, showing the means for trappingthe steam and exhausting the surplus steam. Fig. a, is a similar view ofthe light box devices. Fig. 5, is a horizontal section thereof on theline 5 5 on Fig. il. Figs. 6, 7 and 8 are horizontal sections of my oventaken respectively on the line 6-6, 7-7 and 8-8 on Fig. 1. Fig. 9, is atransverse section of the oven taken on the line 5)#9 on Fig. 1.

In the practical construction my oven comprises the brick housing builtwith a furnace 1 directly over its base, which is of the full width andlength thereof. This furnace is fired through a door way 2 in the rearwall 3 of the housing and just inside said doorway 2, the furnace floorhas a grate surface 4L, located over the ash pit as usual. Located abovethe furnace and also of substantially the full width and length of thehousing is the baking chamber A, the arrangement of which andparticularly the construction of the entrant end thereof, forms the mostessential feature of my present invention, as will presently more fullyvappear'. The furnace 1 discharges into two flues 5, located one in eachof the front corners of the housing, and these flues carry the productsof combustion into a horizontal flue 6 located over the baking chamberand which extends to near the back wall at which point it dischargesinto another horizontal flue 7 that inclines upwardly toward the frontwall of the housing, where it merges with a rearwardly extended taperingflue S that discharges into the chimney 9, in practice, provided withthe usual damper 10 for controlling the oven, as clearly shown in Fig.1.

It will be noticed by referring to Figs. 1 and 3, the baking chamber isinclined upwardly and near its mouth it has an abrupt downward inclineas indicated by 11, the purpose of which will presently appear. lVithinthe entrant or mouth end of the baking chamber' is built a cast metalframing, which consists of the two vertical end castings 12 and acentrally disposed vertical casting 12a. These castings are connectedand closed at the top by an angle plate 13 to which they are securec.These plates are suspended on hanger bolts 11i-11i supported from the Ibeam 15 built in the top of the housing front and extending the fullwidth thereof, as shown in dotted lines on Fig. 2. By supporting theangle plates 13 as described and shown, ample means is provided forsustaining the brick wall above the entrant end of the baking chamber.

16 designates a metal bottom plate, upon which the castings 12 and 12rest and which cover the full surface of the abruptly inclined bottomportion 11 of the baking chamber'.

As clearly shown in Fig. 3, the back and front lower ends of the top orangle plate 13 are in the horizontal plane of the beginning of graduallyinclined bottom of the baking chamber, whereby to cause the steam, as itpasses toward the baking chamber opening, to become trapped within thesupplemental chamber X that forms the entrant end of the baking chamber,which chamber X is sure the positive downward that close the openings18418 as shown.

Each of the angle or top plates 13 has al that connects with an offsrcentral outlet 13Zt take iiue 13b for conveying the surplus steam.outside the bake oven. The vdoors 17--17 are mounted upon a cross bolt19 that extends transversely of the chamber X through the three endcastings 12 and 123L and said doors are so hung that they automaticallyswing to a closure position, the bolt 19 having counterweights 20-20 toinor closure pressure in the doors at all times. The bolt 19, it will benoticed, lies in a plane level with the bottom line of the bake chamberfloor, and the bake stuff feed opening` 21 is in a c plane below saidchamber floor.

vided for, since the steam will at all chamber until after chamber' andjust above made semicircular at its By arranging the feed opening, thedoors thereforl and the throatway g/ between the chambers X and A, itfollows that a positive trapping or deflection of the steam is protimestake the course indicated on Fig. 3, it being manifest that in pushingthe bake stuff under the doors 17, any steam that tends to flow past thedoors can not leave the bakino it touches the bake stuff and hence inescaping, it gives the bake stuff a glossy, and crisp appearance.

In my construction of oven, I provide a single light box located midwaythe baking the angle plate 13 upon which it is supported as shown inFigs. 1 and 2. This box comprises a stationary casing 25 and a movablecasing 26 that slides within the casing 25. The casing 26 is inner endand is framed to receive the mica plate 26a. The light is furnished by agas bracket 27 hinged at 27a so it can be readily withdrawn from thelight box. The smoke from the gas jet is carried up through the outlet2Gb in the casing to the oven fines, By reason of the peculiarconstruction of the light box but a single light box will be `necessaryfor the baking chamber, and since the products of combustion the gassmoke is carried ofi' into the stock or chimney flues, it follows thatdanger of burning out the mica is reduced to the minimum.

Since the feed opening' for the baking chamber extends the full width ofthe said chamber as clearly shown in Fig. 8, a great advantage ofoperation is obtained, since the operator that works on the oven canhave his bake stuff under better control than is possible with theordinary type of ovens that have the usual restricted or central doorwayor feed opening. Again, by reason of locating' the light box directlyover the doorway and centrally thereof another very desirable advantageis acquired, as but one lightbox is necessary, and the interior of thebaking chamber can be readily noted by the operator without thenecessity of going to the opposite ends of the oven which usually havetheir light boxes on the sides.

Having thus described my invention, what I claim is:

1 In-a bakers oven, a steam exhausting flue, means for retarding theescape of the steam through the entrant end of the baking chamber anddelecting the steam toward the exhausts as the doorsthereof are openedto insert the bake stuff.

Q. In a bakers oven, in combination with the baking chamber of asupplemental chamber at the entrant end thereof, having a throatwaycon'miunicating with the baking chamber, an opening for the passage ofthe bake stuff, and an automatic means located at the front of the saidchamber for normally closing said opening.

3. In a bakers oven the combination withl the baking chamber chamber atthe front thereof a throat way that connects the two chambers and anexhaust that opens into the supplemental chamber; of a door for closingolf the supplemental and the baking chambers and automatic means forpressing said door to a closing position as set forth.

4. In combination with the baking chamber; of a supplemental chamberconnected with the baking chamber by a throatway, said supplementalchamber having a feed opening in a plane below the bottom of the bakingchamber and having a steam exhaust connected with the crown thereof.

5. The combination with the baking chamber; of a supplemental chamber atthe front end of said baking chamber, said two chambers being connectedby a throatway, the supplemental chamber having a feed opening locatedin a plane below the bottom of the baking chamber, an automaticallyclosing hinged door for the feed opening located and a supplementalwithin the supplemental chamber, and an oftake flue in the upper end ofthe supplemental chamber for leading off the surplus steam, as setforth.

6. In an oven as described, the combination with the baking chamber; ofa supplemental chamber at the front end of the baking chamber, saidchambers having a throat con'` nection, the supplemental chamber havinga downwardly inclined bottom and comprising the end and intermediatevertical castings, the top angle plate, means for suspending the saidangle plate, doors hinged on the ver tical castings and weighted toautomatically close down against the bottomplate, said doors being'positioned in a plane below the bottom of the baking chamber and a steamofftake connected with the top of the supplemental chamber, as setforth.

7. In a bakers oven of the character described, in combination with thebaking chamber doorways; of a light box mounted over the doorwaycomprising an outer casing and an inner casing slidable in the outercasing, and having its mica carrying frame, and described.

8. A light box for bakers ovens, comprising a tubular outer casingadapted to be mounted over the baking chamber entrant end, an innercasing slidable in the outer casing, having its inner end convened andframed to hold a transparent member such as mica, a swinging bracketlight projected into said inner and outer casings, and an oitftakeconnected with the casing for carrying oil the light smoke, as setforth.

9. A baking oven7 comprising in combination with the baking chamber,having means at the entrant end for trapping and defiect- .ing theexhaust steam, of a furnace located under the baking chamber having atiring substantially as shown inner end formed as a l 1 l l l inletunder the rear end of the baking chamber, backward and forwardhorizontal Hue sections located above the baking chamber and above eachother and in connection with the furnace at the front end 0I" the ovenand a stack located at the rear end of the oven into which the saidfurnace fines discharge, all being arranged substantially as shown anddescribed.

10. A bakers oven provided With side walls, a beam supported thereon atits ends and having a depending rear ange and a front flange, and a doorhingedly mounted Within and adjacent to the depending liront flange andextending the entire Width oven.

.HERMAN HUEG.

litnesses JACOB FRIEAUFF, LOUIS W. HUEG.

of the 35

